Apple Intelligence will be turned on automatically when you update your iPhone, iPad and Mac to iOS 18.3, iPadOS 18.3 and macOS Sequoia 15.3.
iOS 18.3 turns on Apple Intelligence by default

Apple Intelligence will be turned on automatically when you update your iPhone, iPad and Mac to iOS 18.3, iPadOS 18.3 and macOS Sequoia 15.3.
Apple has responded to concerns about inaccurate notification summaries created by Apple Intelligence, saying an iOS 18 update will fix them but it's unclear how.
Read the full release notes for macOS Sequoia 15.2 to learn about the latest Apple Intelligence features and other important changes in this Mac update.
Apple has brought new AI capabilities and other new features with the iOS 18.2, iPadOS 18.2, macOS Sequoia 15.2 and other software updates.
Apple has released iOS 18.1.1, iPadOS 18.1.1 and macOS Sequoia 15.1.1 with fixes for actively exploited vulnerabilities, so install them as soon as you can.
AirPlay on macOS Sequoia 15.2 has new options for sharing a single window or app instead of the whole screen for a bit more privacy.
Learn how to set your Mac to offload large macOS apps and games directly onto an external flash drive, SSD, or hard disk if internal storage is limited.
Apple’s iOS 18.2 software improves how your personal belongings are tracked in the Find My app with the ability to share item locations with trusted contacts.
Apple's macOS Sequoia 15.2 update conveniently puts glanceable weather forecasts for multiple locations to the menu bar of your Mac.
Read Apple's official release notes for macOS Sequoia 15.1 to learn about all the new features and changes in this Mac update, including Apple Intelligence and more.
Owners of USB-C versions of Apple's Magic Keyboard, Magic Trackpad and Magic Mouse report that these accessories require macOS Sequoia 15.1 to work properly.
Apple says macOS Sequoia 15.1 reduces the frequency of nagging permission prompts for screen recording apps that you use on a regular basis.